Cross-Sectional Study Assessing Management Practices and Udder Health in California Sheep Flocks and Seroprevalence of Small Ruminant Lentivirus

Bibliographic Details
Title: Cross-Sectional Study Assessing Management Practices and Udder Health in California Sheep Flocks and Seroprevalence of Small Ruminant Lentivirus
Authors: Rose Digianantonio, Alda F. A. Pires, Roselle Busch
Source: Animals, Vol 14, Iss 16, p 2332 (2024)
Publisher Information: MDPI AG, 2024.
Publication Year: 2024
Collection: LCC:Veterinary medicine
LCC:Zoology
Subject Terms: mastitis, ovine progressive pneumonia (OPP), small ruminant lentivirus (SRLV), sheep, California, multiple correspondence analysis (MCA), Veterinary medicine, SF600-1100, Zoology, QL1-991
More Details: (1) Background: Information is lacking on small ruminant lentivirus (SRLV) status, prevalence, risk factors, and control measures for mastitis in California ewes. The goal of this survey was to outline characteristics of the sheep industry in California related to udder health and mastitis management. (2) Methods: An online survey consisting of 48 questions was completed by respondents between April 2022 and February 2023. Descriptive analysis and chi-squared tests were conducted to evaluate associations between variables. A multiple correspondence analysis (MCA) of general management practices, udder health management, and flock demographics was performed to assess clustering. A subset of respondents (20) participated in SRLV serology testing. (3) Results: Seventy-one completed surveys were submitted. The MCA showed two clusters. Larger flock sizes, the use of breeding ewes for meat or wool production or contract grazing, and extensive management practices were more closely related to >5% udder abnormalities per lactation and ≥5% orphan lambs. The flock-level seroprevalence of SRLV was 75% (15/20), and ewe-level seroprevalence was 14.1% (183/1106). (4) Conclusions: The results of this study highlight areas that need further research, such as exploring differences in mastitis and SRLV incidences among management systems, the efficacy of mastitis treatments, and education on critical timepoints for mastitis diagnosis and control.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 2076-2615
Relation: https://www.mdpi.com/2076-2615/14/16/2332; https://doaj.org/toc/2076-2615
DOI: 10.3390/ani14162332
Access URL: https://doaj.org/article/91b2a45674da4e54a8e2bc86afc3da2c
Accession Number: edsdoj.91b2a45674da4e54a8e2bc86afc3da2c
Database: Directory of Open Access Journals
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More Details
ISSN:20762615
DOI:10.3390/ani14162332
Published in:Animals
Language:English